The pistons are marked for a reason. Some have offset pins, the valve reliefs are cut specifically, the rods may now be backwards too as far as chamfer orientation on the crank, the pistons are designed for specific thrust forces when in operation, etc etc etc.

Thanks,figured as much and yes on a stand and have already pulled it back out.The last piston to install and just wasn't paying attention to rod stamp and indent orientation when the auto student put it on for me.I am sure it will be a good learning experience for him.No harm no foul.Thanks for your reply.

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